I wish to run the following very lengthy shell command via Python:
C:/Users/Alex/Desktop/tableexporter/WGTableExporter.exe "E:/Steam (Games Installed Directly to Hard Drive)/steamapps/common/Wargame Red Dragon/Data/WARGAME/PC/430000626/NDF_Win.dat" pc\ndf\patchable\gfx\everything.ndfbin TAmmunition
When I run this as-is from the Windows shell, it works as expected.
However, when I attempt to do the same via Python's subprocess.run, it doesn't like it. Here is my input:
import subprocess
comm = [r'C:/Users/Alex/Desktop/tableexporter/WGTableExporter.exe "E:/Steam (Games Installed Directly to Hard Drive)/steamapps/common/Wargame Red Dragon/Data/WARGAME/PC/430000626/NDF_Win.dat" pc\ndf\patchable\gfx\everything.ndfbin TAmmunition']
subprocess.run(comm, shell=True)
Here is my output:
The directory name is invalid.
Out[5]: CompletedProcess(args=['C:/Users/Alex/Desktop/tableexporter/WGTableExporter.exe "E:/Steam (Games Installed Directly to Hard Drive)/steamapps/common/Wargame Red Dragon/Data/WARGAME/PC/430000626/NDF_Win.dat" pc\\ndf\\patchable\\gfx\\everything.ndfbin TAmmunition'], returncode=1)
Why does this occur?
The spacing is wrong. subprocess is expecting a list of arguments which it will space out correctly for you.
comm = ['C:/Users/Alex/Desktop/tableexporter/WGTableExporter.exe','E:/Steam (Games Installed Directly to Hard Drive)/steamapps/common/Wargame Red Dragon/Data/WARGAME/PC/430000626/NDF_Win.dat','pc\ndf\patchable\gfx\everything.ndfbin','TAmmunition']
The reason you are getting the error is because of the doublequotes around e:/steam... It's writing something like this to a shell:
c:/users/alex/desktop/tableexporter/wgtableexporter.exe \"E:/Steam (Games Installed Directly to Hard Drive)/steamapps/common/Wargame Red Dragon/Data/WARGAME/PC/430000626/NDF_Win.dat\" pc\ndf\patchable\gfx\everything.ndfbin TAmmunition